1-2-Both-Off Battery Switch 12V-60V Battery Disconnect Master Cut Shut Off for Marine Boat Car RV ATV Vehicle Heavy Duty Battery Isolator Switch

No it’s not a Blue Sea or Perko but it does its job well for my application. I wanted to add a 12 volt dc light over my sump pit, using the sump pump battery. I have the sump backup pump and light wired through this switch. Now for the boat I would recommend paying for the Blue Sea or Perko battery switch. They are simply built better, you do get what you pay for here. The terminals are close enough together that it would be hard to route number fours and heavier gauge wires to this switch. You would have route them from at least two different directions, if not three, as this switch is considerably smaller than the other brands I have mentioned. 5 Stars for this application, for a boat where you need reliability and such, just buy a BlueSea or Perko switch.

Mine was well packaged and "60" is clearly in the stamped item number. The spring is firm and it looks very well made to me. I bought a couple other from a different store, not rated as high with terminals closer together, a weak spring. and much smaller. I would trust this one. I worry about the others even at lower ratings. UPDATE: My mistake it does say 50vdc inside the switch as others have said. Where "60" is mentioned is on the inside of the bottom cover.

Ive used this switch on every watercraft Ive ever owned

It is smaller than the picture would indicate but upon reading I see the dimensions are clear. It is small but it works great on my Four Winds 3 l inboard.

Planned a 2 battery switching system for quite some time for obvious reasons. These switches can get terribly expensive. When I found this price it was time to complete the project. I didn't mount it where it would be in the weather. Just seemed like a bad idea. I can see where a dashboard mount would be convenient but I mounted it inside the battery covers under and enclosure so weather will not an issue. Lift the lid switch the battery on, no big deal. It is a heavy A/B/A+B/ OFF rotary switch. The connection bolts appear to be stainless steel so corrosion shouldn't be an issue, I coat them with dielectric grease anyway. This is the same heavy duty switch sold in the marine stores for way more money.

Installed in Cat skid steer to isolate battery + terminal. Working well. Need to make sure cable terminals stay separated with shrink material or liquid insulation. Well made. May require making a mounting plate and drilling some holes to firmly attach it to vehicle frame.

divided my batteries up and now i can feel safe i always have a back up battery just in case.

I used it for two years but never figured out how it was supposed to work. I had only one set of batteries. Sometimes it worked only when I put it in 'Both' batteries, sometimes in 'Battery #1' and sometimes in 'Battery 2'. I didn't open it to check how the internal connection was set up.